Ok, both are NOT different, identical, only dates differ. ftp://ftp.freepascal.org/pub/lazarus/snapshots/Lazarus-0.9.30.1-31190-fpc-2.4.4-20110613-win32.exevsftp://ftp.freepascal.org/pub/lazarus/snapshots/Lazarus-0.9.31-31188-fpc-2.4.4-20110613-win32.exe
I understand, bug fixes + new features + new bugs (maybe)ftp://ftp.freepascal.org/pub/lazarus/snapshots/Lazarus-0.9.31-31241-fpc-2.5.1-20110616-win32.exe
It depends on maintainer. I see that 0.9.30 is in Oneiric repo:http://packages.ubuntu.com/en/oneiric/lazarus-0.9.30
sudo apt-get install libgtk2.0-dev libogg-dev libvorbis-dev liba52-0.7.4-dev libdts-dev libmad0-dev libmodplug-dev binutils libsvga1-dev libsvga1 libxdamage-dev libxcomposite-dev libxfixes-dev libxcursor-dev libxrandr-dev libxi-dev libxinerama-dev libxext-dev libx11-dev libcairo2-dev libatk1.0-dev libpango1.0-dev libgdk-pixbuf2.0-dev libglib2.0-dev libcairo-script-interpreter2 libfontconfig1-dev libfreetype6-dev libxrender-dev libpng12-dev libsm-dev libpixman-1-dev libxcb1-dev libxcb-render0-dev libxcb-shm0-dev libdca-dev libpng12-dev libglib2.0-bin zlib1g-dev libxft-dev libxau-dev libxdmcp-dev x11proto-core-dev x11proto-input-dev x11proto-kb-dev xtrans-dev xorg-sgml-doctools x11proto-composite-dev x11proto-damage-dev x11proto-xext-dev x11proto-fixes-dev x11proto-xinerama-dev x11proto-randr-dev libxrender-dev libexpat1-dev libc6-dev libpthread-stubs0-dev libc-dev-bin linux-libc-dev gcc-4.6 make libpthread-stubs0 libice-dev x11proto-render-dev
sudo dpkg -i --force-all *.deb
sudo apt-get install libqt4pas-dev libqt4pas5 libqt4-network libqtcore4 libqtgui4 libqtwebkit4 libqt4-dbus libaudio2 libqtlocation1 libqtmultimediakit1 libqt4-xml libqt4-sql libqt4-opengl
That's strange, I did have that deb in the tarball I downloaded...
It won't install on Ubuntu Lucid anyway, since it depends on a libgdk which doesn't exist in Lucid's repo.